Sutro Biopharma, Inc. Annual report pursuant to Section 13 and 15(d)

Annual report pursuant to Section 13 and 15(d)

Cover
- Document and Entity Information
Financial Statements
Notes to Financial Statements
Accounting Policies
- Basis of Presentation and Summary of Significant Accounting Policies (Policies)
Notes Tables
Notes Details

Cash Equivalents and Marketable Securities - Schedule of Cash Equivalents and Marketable Securities (Details)

v3.23.1

Cash Equivalents and Marketable Securities - Schedule of Cash Equivalents and Marketable Securities (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Cash And Cash Equivalents [Line Items]
Amortized Cost Basis	$ 299,026	$ 228,883
Unrealized Gains	10
Unrealized Losses	(626)	(314)
Fair Value	298,410	228,569
Less amounts classified as cash equivalents, Amortized Cost Basis	(47,254)	(30,414)	$ (206,152)
Marketable Securities
Cash And Cash Equivalents [Line Items]
Amortized Cost Basis	255,708	199,432
Unrealized Gains	8
Unrealized Losses	(626)	(314)
Fair Value	255,090	199,118
Cash Equivalents
Cash And Cash Equivalents [Line Items]
Less amounts classified as cash equivalents, Amortized Cost Basis	(43,318)	(29,451)
Less amounts classified as cash equivalents, Unrealized Gains	(2)
Less amounts classified as cash equivalents, Fair Value	(43,320)	(29,451)
Money Market Funds
Cash And Cash Equivalents [Line Items]
Amortized Cost Basis	36,486	29,451
Fair Value	36,486	29,451
Commercial Paper
Cash And Cash Equivalents [Line Items]
Amortized Cost Basis	87,140	22,580
Fair Value	87,140	22,580
Corporate Debt Securities
Cash And Cash Equivalents [Line Items]
Amortized Cost Basis	36,554	75,012
Unrealized Gains	2
Unrealized Losses	(127)	(151)
Fair Value	36,429	74,861
Asset-backed Securities
Cash And Cash Equivalents [Line Items]
Amortized Cost Basis	14,026	32,975
Unrealized Losses	(10)	(18)
Fair Value	14,016	32,957
U.S. Government Securities
Cash And Cash Equivalents [Line Items]
Amortized Cost Basis	91,619	47,504
Unrealized Gains	8
Unrealized Losses	(376)	(84)
Fair Value	91,251	47,420
U.S. agency securities
Cash And Cash Equivalents [Line Items]
Amortized Cost Basis	16,646
Unrealized Losses	(39)
Fair Value	16,607
Supranational Debt Securities
Cash And Cash Equivalents [Line Items]
Amortized Cost Basis	16,555	21,361
Unrealized Losses	(74)	(61)
Fair Value	$ 16,481	$ 21,300

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